土壤和叶面施用是用于向玉米添加微量营养素的最广泛使用的方法。优质微量营养素肥料,然而,在发展中国家很难获得;微量营养素种子包衣是一种有吸引力和实用的替代品。我们将这种方法应用于玉米(ZeamaysL.),以证明硼(B)的作用,铁(Fe),锰(Mn),钼(Mo)和锌(Zn)硫酸盐对玉米萌发的影响,活力,幼苗生长,种子产量和种子质量以及种子微量元素浓度。在三种具有代表性的中国土壤类型(沙质,紫色和石灰土)。与未经处理的对照相比,用微量营养素涂覆玉米种子显着提高了种子出苗率,幼苗高度,叶长,叶片宽度,叶面积,主根长度,根号,地上新鲜生物质,地上干生物质,地下新鲜生物质,地下干生物质,沙地的耳朵厚度和产量,紫色和石灰土壤。与未经处理的对照相比,用微量营养素涂覆玉米种子还显着提高了玉米种子的产量和质量,包括穗贫瘠的尖端,耳朵长度,耳朵厚度,谷物/行,百颗种子重,和行/耳。此外,B,Zn,Fe,用微量营养素包覆玉米种子后,Mn和Mo微量元素在玉米种子中积累。我们的发现表明,微量营养素种子包衣可以改善玉米杂交种的养分吸收和产量。
Soil and foliar application are the most widely used methods for adding micronutrients to maize. High quality micronutrient fertilizers, however, are difficult to obtain in developing countries; micronutrient seed coatings are an attractive and practical alternative. We applied this approach to maize (Zea mays L.) to demonstrate the effects of boron (B), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn) sulfates on maize germination, vigor, seedling growth, seed yield and seed quality as well as on seed microelement concentration. Seed coating was tested on three representative Chinese soil types (sandy, purple and lime soils). Compared to untreated controls, coating maize seeds with micronutrients significantly increased the seed emergence rate, seedling height, leaf length, leaf width, leaf area, main root length, root number, above ground fresh biomass, above ground dry biomass, underground fresh biomass, underground dry biomass, ear thickness and yield in sandy, purple and lime soils. Coating maize seeds with micronutrients also significantly increased the yield and quality of maize seed compared to untreated controls including ear barren tip, ear length, ear thickness, grains/row, hundred seed weigh, and rows/ear. Also, B, Zn, Fe, Mn and Mo microelements accumulated in maize seed after coating the seed with micronutrients. Our findings indicate that micronutrient seed coating may improve nutrient uptake and production of maize hybrids.